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| Archive Reference / Library Class No. | NCB/A/BUT/13/10/7 |
| Former Reference | N4/136 |
| Title | Volume 1 of copy reports on research into the coal seams of the Midland District made by the Coal Laboratory Nottingham, copies seemingly made for the Butterley Company |
| Date | 1927-1935 |
| Description | Indexed at front. Marked on front "Physical & Chemical Research. Coal Seams Midland District. Vol. 1"; marked on spine "Fuel Research Vol. 1". |
| Extent | 1 volume |
| Level | Item |
| Repository | Derbyshire Record Office |
| Archive Creator | Butterley Company |
| National Coal Board |